XGY   Grimsby Mountain, ON
Weather Observed At   43-11  N    79-34  W
 
*** AURBO RED WARNING IN EFFECT ***
  2026-06-05 1:00pm Max
Min
  Weather
----



  Temperature
29.9 °C
30.6 °C
 12:32pm
14.8 °C
  2:11am
  Relative Humidity
43 %
72 %
  2:12am
40 %
 12:34pm
  Dew Point
16.0 °C
17.8 °C
 12:23pm
9.4 °C
 12:50am
  Wind Velocity
216 ° at  2.5 G 5.2 kt
7.8 kt
  8:26am

  Pressure
    29.951 " 
30.045 "
 12:15am
29.950 "
 12:59pm
  Rainfall Rate
0.0 mm/h 0.0 mm/h
 ----m

  Snow On Ground 0 cm

  Brightness / Darkness   1007 W/m² /  0.00 m/"² 1078 W/m²
 12:44pm
  19.91 m/"²    1:00am
  Remarks
 
  RainfallToday
0.0 mm
Storm Total
0.0 mm
  SnowfallToday
0.0 cm
Storm Total
0.0 cm
  Evapotranspiration Today
-2.82 mm


  Lake Conditions
  Water Temperature  15.7 °C
  Waves  CALM
ICE FREE

  Meteor Index
4   Random
  Aurora Index / Solar
108   Minor Storm   - 11 nT   Solar Flux   148  sfu  /   S 0    G 1    R 0   /  MUF   26.2 MHz
  Sunrise 5:40am
  Sunset 8:55pm

  Moonrise N/A
  Moonset N/A
  Moon Phase Waning Gibbous

Grimsby Mountain Weather Maps
Local Regional Area Synoptic

     
updated H+09 and every 10m updated H+19 and H+49
updated H+19

Ontario 6-Hour Meteorological Summary
Canadian 6-Hour Meteorological Summaries

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EOF